Bridle-bit



(No Model.)

- J. MURPHY.

. BRIDLE BIT. No. 297,944. Patented Apr. 29, 1884.

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' UNITED STATES PATENT OFFICE.

JOHN MURPHY, OF SPRINGFIELD, MASSACHUSETTS.

BRIDLE-BHIT.

SPECIFICATION forming part of Letters Patent No. 297,944, dated'April 29, 1884.

I Application filed August 8, 1883. (No model.)

To all whom, it may concern:

Be it known that I, JOHN MURPHY, a citizen of the United States, residing at Springfield,

Hampden county, State of Massachusetts, have invented a new and useful Improvement in Bridle-Bits, of which the following is a specification.

hinge-pin, by means of which the many diffi culties incident to annealing and finishing bits made in the ordinary way are obviated. The wear of the hinge-surfaces can be taken up, the hinge-pin can be renewed at small cost, and, without removing the cheek-straps or reins from the rings, different mouth-pieces may be combined with the same cheek-pieces. This is fully illustrated in the accompanying drawings, in which- Figure I is a side elevation, in partial section, of a stiff bit of my construction; and Fig. II is a plan view of one-half of a. snaflle-bit, with its cheek-piece removed.

B is the ring cheek-piece, slotted at b to re ceive the end d of the mouth-piece D. The cheek-piece is bored in prolongation of the hole h in the mouth-piece end, to receive the pin H, and to afford a screw-socket below the mouthpiece, to receive the screw end of the pin H, as seen in Fig. I; and I prefer, as shown, to receive the head of pin H in a counterbore in the cheek-piece. The bore which re- 35 ceives the pin H is elongated, as shown in the, drawings, so that it is longer than said pin; and when the jaws of the cheek-ring are distended to their maximum extent, there will be a space-w, left below the screw, thus per- 40 mitting the said jaws to be drawn together by simply turning the screw-pin H. The spring in the ring of the cheekpiece permits the mouth-piece, by means of screw H, to be al-' ways so snugly clamped that while the hinge 5 is unimpaired no dirt can get in the joint, nor' moisture to freeze.

Now, having described my invention, what I claim as new is p In a bridle-hit, a ring cheek-piece slotted to 5c form jaws, between which the apertured end of thebit-bar is clamped, said jaws having a countersunk and tapped bore to receive a headed screw-pin, said bore beingelongated beyond the length of the pin, so that when 55 the jaws are distended to their maximum extent there will be a space below the point of a the screw-pin, substantially as set forth.

2 JOHN MURPHY.

Witnesses:

R. F. HYDE, E. W. RoLLINs. 

